Re: [multipathtcp] MPTCP carrying UDP

William Ivancic <ivancic@syzygyengineering.com> Wed, 16 November 2016 14:23 UTC

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Date: Wed, 16 Nov 2016 09:23:08 -0500
From: William Ivancic <ivancic@syzygyengineering.com>
To: <mohamed.boucadair@orange.com>, "N.Leymann@telekom.de" <N.Leymann@telekom.de>, "alan.ford@gmail.com" <alan.ford@gmail.com>
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Thread-Topic: [multipathtcp] MPTCP carrying UDP
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Subject: Re: [multipathtcp] MPTCP carrying UDP
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I think Med’s proposal is very reasonable.  I think whatever would be learned from and EXPERIMENTAL solution would be valuable for many working groups / research groups.  One might consider taking this to some research group, but I think we are so close to an EXPERIMENTAL solution already in MPTCP, that  such a move wouldn’t be a good use of time and energy.

 

Will

 

From: multipathtcp <multipathtcp-bounces@ietf.org>; on behalf of <mohamed.boucadair@orange.com>;
Date: Wednesday, November 16, 2016 at 2:07 AM
To: "N.Leymann@telekom.de"; <N.Leymann@telekom.de>;, "alan.ford@gmail.com"; <alan.ford@gmail.com>;
Cc: "multipathtcp@ietf.org"; <multipathtcp@ietf.org>;, "Markus.Brunner3@swisscom.com"; <Markus.Brunner3@swisscom.com>;
Subject: Re: [multipathtcp] MPTCP carrying UDP

 

Hi Nic, 

 

Of course, there are applications that are not suitable to be injected inside an MPTCP connection. 

It is also clear that some issues are to be handled correctly if we want to have a decent solution. 

 

All that is fully agreed.

 

My point is that instead of speculating about the foreseen results, let’s document an EXPERIMENTAL solution so that people can play with and assess. This is fundamental because all is about technical details. 

 

If it appears the results are bad, that particular solution will be then stamped as historic. 

 

Cheers,

Med

 

De : N.Leymann@telekom.de [mailto:N.Leymann@telekom.de] 
Envoyé : mercredi 16 novembre 2016 06:25
À : alan.ford@gmail.com; BOUCADAIR Mohamed IMT/OLN
Cc : multipathtcp@ietf.org; Markus.Brunner3@swisscom.com
Objet : AW: [multipathtcp] MPTCP carrying UDP

 

Hi,

 

Von: multipathtcp [mailto:multipathtcp-bounces@ietf.org] Im Auftrag von Alan Ford
Gesendet: Dienstag, 15. November 2016 16:55
An: mohamed.boucadair@orange.com
Cc: multipathtcp@ietf.org; Markus.Brunner3@swisscom.com
Betreff: Re: [multipathtcp] MPTCP carrying UDP

 

Alan Ford wrote:

 

> As I said at IETF95 and will say again now, MPTCP provides a TCP service: stream-oriented, reliable, whereas UDP is datagram-oriented, and unreliable.

 

> "Mapping" one to the other cannot be directly done since the transports have fundamentally different semantics.

…..